Mixed convection opposing flow in porous annulus

The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is c...

Full description

Saved in:
Bibliographic Details
Main Authors: J., Salman Ahmed N., Kamangar, Sarfaraz, Al-Rashed, Abdullah A. A. A., Khan, T. M. Yunus, Khaleed, H. M. T.
Format: Conference Proceeding
Language:English
Subjects:
Annuli
Cold surfaces
Computational fluid dynamics
Convection
Cylinders
Darcys law
Finite element method
Fluid flow
Partial differential equations
Peclet number
Porous media
Thermal energy
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The current work investigates the mixed convection flow in a vertical porous annulus embedded with fluid saturated porous medium. The annulus is isothermally heated discretely at 20%, 35% and 50% of the height of cylinder at the center of annulus. Darcy law with thermal non-equilibrium approach is considered. The governing partial differential equations are solved using Finite Element Method (FEM). The effects of Peclet number Pe and conductivity ratio Kr on heat transfer and fluid flow is discussed It is found that the applied velocity in the downward direction, in case of an opposing flow, does not allow the thermal energy to reach from a hot to a cold surface.
ISSN:0094-243X
1551-7616
DOI:10.1063/1.4952375